2000 LEXUS GS400 vapor canister

EC04V±06
B08612
PCV Valve VSV for EVAP
Front TWC
EVAP Service Port
Fill Check LineCutoff ValveCharcoal Canister
Air Inlet Line
Vapor Pressure Sensor
Fuel Tank Cap
VSV for Vapor
Pressure Sensor
Purge Line
EVAP Line
Vent Line
Air Drain Hose
Rear TWC
EC±2
± EMISSION CONTROL (2JZ±GE)PARTS LAYOUT AND SCHEMATIC DRAWING
1453 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
PARTS LAYOUT AND SCHEMATIC DRAWING
LOCATION

EC04W±06
B08613
VSV for Vapor Pressure Sensor
Purge Line
Air Inlet LineAir Drain Hose
EVAP Line
Fuel Tank Charcoal Canister VSV for EVAPVapor Pressure Sensor
PCV Valve
Front TWC Front TWC
Vent Line
Fuel Tank
Cap
EVAP
Service
Port
Rear TWC
± EMISSION CONTROL (2JZ±GE)PARTS LAYOUT AND SCHEMATIC DRAWING
EC±3
1454 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
DRAWING

EC053±05
B06731
RH Rear Drive Shaft
Rear Suspension
Member Brace
Charcoal Canister AssemblyVapor Pressure
Sensor Connector
EVAP HoseVSV Connector
for Vapor Pressure
Sensor
Air Inlet Hose
83 (850, 61)
50 (510, 37)
Purge Hose
N´m (kgf´cm, ft´lbf) : Specified torque
Air Drain Hose
Vent Line Hose Canister Tank
EC±6
± EMISSION CONTROL (2JZ±GE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
1457 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
COMPONENTS

B06545
B06743Hose ClipperAir Drain Hose
B06546
Pressure
Gauge
Pressure EC±8
± EMISSION CONTROL (2JZ±GE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
1459 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(e) Check the vacuum at idle.
Vacuum:
Maintain at 0.368 ± 19.713 in.Hg (5 ± 268 in.Aq) for over
5 seconds
HINT:
If the vacuum does not change, you can conclude that the hose
connecting the VSV to the service port has come loose or is
blocked, or the VSV is malfunctioning.
(f) LEXUS Hand±Held Tester:
Conclude forced driving of the VSV for the EVAP.
(1) Stop the engine.
(2) Disconnect the LEXUS hand±held tester from the
DLC3.
(g) If you have no LEXUS Hand±Held Tester:
Conclude forced driving of the VSV for the EVAP.
(1) Stop the engine.
(2) Disconnect the positive (+) and negative (±) leads
from the battery from the VSV terminals for the
EVAP.
(3) Connect the VSV connector for the EVAP.
(h) Disconnect the vacuum gauge from the EVAP service
port on the purge line.
(i) Connect a pressure gauge to the EVAP service port on
the purge line.
(j) Check the pressure.
(1) Close off the air drain hose at the marked position
of the canister with a hose clipper or similar instru-
ment.
(2) Add the pressure (13.5 ± 15.5 in.Aq) from the EVAP
service port.
Pressure:
2 minutes after the pressure is added, the gauge
should be over 7.7 ± 8.8 in.Aq.
HINT:
If you can't add pressure, you can conclude that the hose con-
necting the VSV
canister
fuel tank has slipped off or the
VSV is open.

B06547
Fuel Tank Cap
B06840
AirDisconnect
EVAP Line Hose
B06841Air
Disconnect
Plug
Disconnect
EVAP Line Hose
Purge Line
Hose
Purge Port
± EMISSION CONTROL (2JZ±GE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC±9
1460 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(3) Check if the pressure decreases when the fuel tank
cap is removed while adding pressure.
HINT:
If the pressure does not decrease when the filler cap is re-
moved, then you can conclude that the hose connecting the
service port to the fuel tank is blocked, etc.
(k) Disconnect the pressure gauge from the EVAP service
port on the purge line.
5. CHECK AIRTIGHTNESS IN FUEL TANK AND FILLER
PIPE
(a) Disconnect the EVAP line hose from the charcoal canister
side and then pressurize and make the internal pressure
in the fuel tank 4 kPa (41 gf/cm
2, 0.58 psi).
(b) Check that the internal pressure of the fuel tank can be
hold for 1 minute.
(c) Check the connected portions of each hose and pipe.
(d) Check the installed parts on the fuel tank.
If there is no abnormality, replace the fuel tank and filler pipe.
(e) Reconnect the EVAP line hose to the charcoal canister.
6. INSPECT FUEL CUTOFF VALVE AND FILL CHECK
VA LV E
(a) Disconnect the purge line hose and EVAP line hose from
the charcoal canister.
(b) Disconnect the air drain hose from the canister tank, and
plug its.
(c) Pressurize 4 kPa (41 gf/cm
2, 0.58 psi) to the purge port
and check that there is ventilation through the EVAP line
hose.
HINT:
In the condition that the fuel fuel is full, as the float value of the
fill check valve is closed and has no ventilation, it is necessary
to check the fuel amount (volume).
(d) Check if there is any struck in the vent line hose and EVAP
line hose.
If there is no stuck in hoses, replace the fuel cutoff valve and fill
check valve.
(e) Reconnect the purge line hose and EVAP line hose to the
charcoal canister.
(f) Reconnect the air drain hose to the canister tank.

B06842
Air
Air Inlet Line Hose
B06803
Push
PinchPinch
A A
B06791
B06792Air
Purge Port
Air Drain Port
EVAP Port
Cap
Vent Port
EC±10
± EMISSION CONTROL (2JZ±GE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
1461 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
7. CHECK AIR INLET LINE
(a) Disconnect the air inlet line hose from the charcoal canis-
ter.
(b) Check that there is ventilation in the air inlet line.
(c) Reconnect the air inlet line hose to the charcoal canister.
8. REMOVE CHARCOAL CANISTER ASSEMBLY
(a) Disconnect the RH rear drive shaft from the differential.
(See page SA±52)
(b) Remove the charcoal canister assembly.
(1) Disconnect the vapor pressure sensor connector.
(2) Disconnect the VSV connector for vapor pressure
sensor.
(3) Disconnect the purge line hose, EVAP line hose
and air inlet line from the charcoal canister.
(4) Disconnect the vent line hose from the charcoal
canister.
Push the connector deep inside, pinch portion A,
and pull out the connector.
(5) Disconnect the air drain hose from the chanister
tank.
(6) Remove the 3 nuts and the charcoal canister as-
sembly.
9. INSPECT CHARCOAL CANISTER
(a) Visually check the charcoal canister for cracks or dam-
age.
(b) Inspect the charcoal canister operation.
(1) Plug the vent port with a cap.
(2) While holding the purge port closed, blow air (1.76
kPa, 18 gf/cm
2, 0.26 psi) into the EVAP port and
check that air flows from the air drain port.

B06793Air
Purge Port
EVAP
Port
Air Drain PortAir Inlet Port
B06794
Vacuum
Purge Port
Air Inlet Port
B06795Vacuum
Purge Port
EVAP
Port Air Inlet Port
± EMISSION CONTROL (2JZ±GE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC±11
1462 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(3) While holding the purge port and the air drain port
closed, blow air (1.76 kPa, 18 gf/cm
2, 0.26 psi) into
the EVAP port and check that air does not flow from
the air inlet port.
(4) Apply vacuum (3.43 kPa, 25.7 mmHg, 1.01 in.Hg)
to the purge port, check that the vacuum does not
decrease when the air inlet port is closed, and
check that the vacuum decreases when the air inlet
port is released.
(5) While holding the air inlet port closed, apply vacuum
(3.43 kPa, 25.7 mmHg, 1.01 in.Hg) to the EVAP port
and check that air flows into the purge port.
If operation is not as specified, replace the charcoal canister.
10. INSPECT VSV FOR EVAP
(See page SF±52)
11. INSPECT VSV FOR VAPOR PRESSURE SENSOR
(See page SF±57)
12. INSPECT VAPOR PRESSURE SENSOR
(See page SF±61)
13. REINSTALL CHARCOAL CANISTER ASSEMBLY
(a) Install the charcoal canister assembly.
(b) Connect the RH rear drive shaft to the differential.
(See page SA±59)

SF0O3±03
A07218
Vacuum Hose
VSV Connector for Vapor Pressure Sensor
VSV for Vapor Pressure Sensor
Vacuum HoseVacuum Hose
Charcoal Canister Assembly
VSV
SF±56
± SFI (2JZ±GE)VSV FOR VAPOR PRESSURE SENSOR
1522 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
VSV FOR VAPOR PRESSURE SENSOR
COMPONENTS